TP-Link T2600G Series User Manual

Configuring DHCP Service Configuration Examples
User Guide
595
5.5 Example for DHCP L2 Relay
5.5.1 Network Requirements
As the following figure shows, two groups of computers are connected to Switch A, and
Switch A is connected to the DHCP server. All devices on the network are in the default
VLAN 1. All computers get dynamic IP addresses from the DHCP server. For management
convenience, the administrator wants to allocate separate address spaces for the two
groups of computers.
Figure 5-32 Network Topology for DHCP L2 Relay
Gi1/0/2Gi1/0/1
Group 1 Group 2
DHCP Server
192.168.10.1/24
Switch A
DHCP Relay
00:00:FF:FF:27:12
192.168.10.100-192.168.10.150 192.168.10.151-192.168.10.200
PC PCPC PC
5.5.2 Configuration Scheme
To meet the requirements, you can configure DHCP L2 Relay on Switch A to inform the
DHCP server of the group information of each PC, so that the DHCP server can assign IP
addresses of different address pools to the PCs in different groups.
The overview of the configurations are as follows:
1) Configuring Switch A
a. Enable DHCP L2 Relay globally and on VLAN 1.
b. Configure Option82 on ports 1/0/1 and 1/0/2.
Demonstrated with T2600G-28TS, 5.5.3 Configuring the DHCP Relay Switch provides
configuration procedures in two ways: using the GUI and using the CLI.

TP-Link T2600G Series Specifications

General

Model	T2600G Series
Layer	Layer 2+
Type	Managed
Uplink Ports	4 x Gigabit SFP slots
VLAN	4K VLANs
QoS	8 priority queues
Management	Web-based GUI, CLI, SNMP, RMON
Standards and Protocols	IEEE 802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3z, IEEE 802.3ad, IEEE 802.3x, IEEE 802.1d, IEEE 802.1s, IEEE 802.1w, IEEE 802.1q, IEEE 802.1p, IEEE 802.3af, IEEE 802.3at
Interface	RJ45
L2 Features	STP, RSTP, MSTP, LACP, IGMP Snooping
L3 Features	Static Routing
Security	802.1X, Port Security, DHCP Snooping, IP Source Guard, DoS Defend, ARP Inspection, SSH, SSL, ACL
MAC Address Table	16K
Jumbo Frame	9KB
Operating Temperature	0°C to 40°C
Storage Temperature	-40°C to 70°C
Operating Humidity	10% to 90% RH non-condensing
Storage Humidity	5% to 90% non-condensing